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sheets-Sheet 1.

(No Model.)

A.G.BURTON. CLAY SEAL VMAKING MACHINE.

PatentedJarn. 6,1891.

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' (No Model.) s shwrs-sheen 2; A G BURTON CLAY SEAL MAKING MACHINE.

Patented Jan. 6,1891.

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M fw Q -\No Model.) 3 Shee ts-Sheet 3.

A. G. BURTON. CLAY SEAL MAKING MACHINE.

No. 444,232.' Patented Jan. 6,1891.

UNITED STATES v PATENT OEEicE.

AUGUSTUS G. BURTON, OF CHICAGO, ILLINOIS, ASSIGNOR TO CHAS. E. DAVIS AND JOHN NORRIS, OF SAME PLACE.

CLAY-SEAL-MAKING MACHINE SPECIFICATION forming part of Letters Patent No. 444,232, dated January 6, 1891.

Application filed October 14, 1889. Serial No. 327,034. (No model.)

To a/ZZ whom, zit may concern: A is the-frame of the machine; B, the con- Be it known that I, AUGUSTUS G. BURTON, veyer-belt which receives the clay tape from a citizen of the United States', residing at which the seals are formed and transports it Chicago, county of Cook, and State of Illiunder the imprinting and dividing mechan- 55 nois, have invented certain new and useful ism.

Improvements in Seal-Making Machines, C is the actuating-shaft of the imprinting which are fully set forth in the following mechanism journaledinthe bracket A,Which specification, reference being had to the acis supported on the main frame A and afcompanyingdrawings, forminga part thereof. fords the vertical guide-bearings for the ver- 6o to This invention 4consists of improvements tically-reciprocating head C2, to which are senpon a seal-making machine designed by cured the seal-imprinting stamp C and the Christian C. Hill, and described in his applinumbering mechanism C21. This head is cation, numbered 328,446, tiled in the Patent actuated in the familiar mannerof power by Office October 2S, 1589. a crank c10 on the shaft C and a link ou, con- 65 15 The improvements relate tofmeans for numnecting said crank to the head C2.

bering the seals consecutively and for inking I will now describe the mechanism for inkthe imprinting mechanism and for delivering the stamping devices. Upon the shaft ing the seals when completely formed and im- C there is made fast the collar C3, Fig. 4, printed upon a suitable tablet or tray for having a laterally-projecting stud C30, and 7o 2c transportation to the drying-oven. upon the upper end of the bracket A, above In the drawings, Figure l is a front elevathe bearing of the shaft C, there is secured tion of the seal-making machine, the details the supplemental bracket A10, having jourwhich do not pertain to my improvement benal-boxes al() am for the rock-shaft C4. To ing omitted, except in so far as it is necessary the rear end of this rock-shaft there is se- 75 to show them to make clear the relation of cured thelever-arm C40, which overhangs the my improvement to the remainder of the mashaft C', and beyond the latter has secured chine. Fig. 2 is an enlarged detailsection of to it the cam C41, Figs. 4 and G. This corna portion of the tray and the delivering mechprises, as a cam-track exposed` to the action anism. Fig. 3 is an enlarged detail rear eleof the stud C30,the straight lovs er edge 040 and 8o 3o vation of the same parts, showing also a porthe downwardlyconcave curvilinear edge tion of the bearing of thc actuating-shaft and C41, Which makes nearly a right angle with cam thereon and lever and connecting-rod the straight edge C40. As the shaft C rewhereby the necessary motion is imparted to volves, the stud C30, coming up under the cam the delivering mechanism. Fig. 4 is a detail O41, encounters the straight edge 040, and as 85 plan of the imprinting and part of the adjathe stud continues to revolve on upward it cent mechanism. Fig 5 is a section at 5 5 on lifts t-he cam C41 and the lever-arm C40, rock Fig. 4. Fig. 6 is a detail sectional elevation ing the shaft C4. The stud encounters the of the crank and cam mechanism which opstraight edge 040 near the farther corner, and crates the inking-roll. Fig. 7 is a detail secas it rises travels across that edge to the cor- 9o 4o tional elevation of the feedoperating eccenner formed by that edge and the concave tric and lever, the position being that which edge 041, continuing to lift the cam during so corresponds to the full-line position of the much of its revolution. The stud reaches the ink-roll-operating mechanism in Fig. 6. Fig. corner 042 after it has passed the horizontal 8 is a detail front elevation of the stamp-headplane of the shaft C', and at this position the 95 operating crank and link, and a cam on the lifting action ceases, (see Fig. 6,) because the same shaft which operates the cutting and stud running o the edge 040 and coming into delivering mechanism, the `position correcontact with the concave edge C41, revolving sponding to that of the full lines in Fig. 7. upward and coming back toward the vertical Fig. 9 is a detail section at the line 9 9 on Fig. plane of the shaft, withdraws from under the roo 5o 4. Fig. l0 is a bottom plan of the inkingcam which settles down upon it and descends plate-rotating devices. on account of the shape of the edge 041, be-

ing in that position mfcentric to the shaft, notwithstanding that the stud still rising in its rotary movement. By the time the stud is vertically over its shaft C the leverarm C has dropped down and is stopped upon the shaft itself C', the stud continues revolving out trom under the cam C, and continues its revolution until it again encounters the under edge ci" of the cam. 'lo the l'orward end ot the rock-shaft Cl there is sceured the lever-arm C", which actuatcs the inking mechanism, which will now be described.

'lo the fraaie A at the forward edge there are secu red two brackets ll ll, which project upward and afford bearing for the slide-bar ll', which reciproeates in them parallel to the course of the carrying-belt. Upon the slidebar Il are secured two adjustable stops ll?, for a purpose which will hereinafter be explaincd. To the frame there isalso secured, most conveniently at the rear, a bracket l, which extends up and overhangs the carrying-belt; 13, and has mounted upon it the rc volving ink-spreading plate l. This spreading-plate has projecting from its lower side the studs i', constituting` teeth by which it is actuated by means ot' a pawl llt, pivoted to the end ot the slide-bar H. The pawl engages the tooth t" on the pushing stroke and rotates the plate l a short distance and slips over the tooth on its return stroke. The arm C42 ot the shaft C1 normally extends downward l'rom said shatt, and near the lower end it is connected to the link Ci", which extends to the left and downward from said connection and has the cross-bar C50, to which there is pivoted the hiking-roll arm orframc CG. As illustrated,this device is atrame comprised of two side bars CUO C0,bet.ween which the cross-bar C5O extends, said side bars extending from the said cross-bar back to the right, and at their extreme end in that direction having journaled in them the inkingroller C7, which at its extreme position to the left rests upon the plate l. 'lo the trame A there is secured a b1acket,wl1ieh has arms Ai" extending' up and overhanging the conveyerbelt and one ot them overhanging the plate I, and in said ovcrhanging arms the bars C obtain slide-bearings, the position of said arms and bearings therein being such as to permit the bars to slide therein while theroll contacts the inking-platc. The cross-bar C50 extends far enough forward to protrude bctween the stops HA2 on the slide-bar Il and engage them as it is rcciprocated. The action of this mechanism, it will be seen, is as follows: Vhen thcrock-shaft C" is rocked by the engagement with the cam C of the stud U30, as above described, the lever-arm Cl2 will swing to the right, and by means of the link CF will reciprocate in that direction the inkroller frame CG and the ink-roller C7, and assuming those parts to have been at their extreme position to the lett when the arm C'l2 commenced to swing the hiking-roller will be pushed to the right ol't' from the hiking-plate l', and the seal-imprinting and numbering devices being at this time at their highest position said roller will be passed on under them and will ink their downwardly-cxposed faces. \Vhen the stud C3" passes off the straight edge el onto the curved edge e'11 and the lever-arm C10 begins to descend and the lever-arm U12 to swing to the lett, thcinkingroller will be withdrawn, passing again over the downwardly-exposed printing-faces onto the inking-plate I. In the iirstmotion to the right the cross-bar C50 will encounter one ol the studs H2, and thereby as it moves will reciprocate the bar Il and cause the pawl H1 to be pushed against the tooth '11 of the plate I and rotate the plate, and asthe reverse motion is nearing its completion just as the inking-roll reaches the edge ol' the plate said cross-bar will encounter the other stop Il2 and retract the bar ll', the pawl Il. slipping over the tooth fi, which stands bchind it, and being by the controlling-swing caused to engage behind said tooth, ready for the next actuating movement.

I will now describe the mechanism forsubdividing the tape into individual seals and for delivering such seals off from the convcyerbelt and piling them on a receivingtray. To the shaft C', in front ot its bearing in the bracket A', there is secured the cam J, which is circular throughout the greater portion ol its periphery, having, however, one eccentric prominence J. To the bracket A',

, at the lower part, there is pivoted the lever J2, extending nearly upright from its pivotI and having toward the upper end an abutment J2, preferably being an anti-friction stud and roll projecting horizontally across the plane of the cam J,said abutmeutJ2con tacting the periphery of said cam and being heldin contact with said periphery by the spring J3, connected to the upright framepost A and to said lever J2. To the lever, between the abutment Jiiand the pivot, there is connected the rod or link L, the other cud ot' which is connected to an arm L of a rockshaft U, which is journaled in lugs d d', which project upward from the fraaie A, one on each side of the conveyor-belt. Said rockshaft has another leverarln L3 extending to the lett, nearly horizontal to the end of which there is secured the knife L". To the frame A there is secured in position to overhang the conveyer-belt two plates R, between which there is secured a quantity of felt R', said plates having the slots r, through which the knife L" can descend, the felt being also cut through in the path of the knife, but not having any material removed. rlhe purpose ot' this felt is to hold a suitable lubricating substance to prevent the knife sticking to the tape when it cuts it, and also to wipe the knife clean as it passes through the telt. The position of the prominence J on the cam .l is such with respect to the position of the crank by which the stamp-head is recipro- IOO IIO

cated that it. actuates the lever J2 while the stamp is down and causes'theknife L4 to descend through the lubricating-felt and to cut the tape which lies on the conveyer-belt transversely, making this motion, as it will be observed, once for each revolution of the shaft C', and so making a subdivision of the plate as often as an imprint is made upon it by the stamp-head. The tape being the width of two seals, the knife being the width of the tape, severs two seals therefrom at every stroke, and imprinting-dies are in like manner made double, printing two seals at each descending movement of the stamp head. From the bearings of the idle-roller q, around which the belt E passes at the delivery end, two lugs S S extend obliquely downward and toward the left, and in them is journaled a rock-shaft S', Figs. 2 and 3, having secured to it between its bearings the lip S2, of sheet metal, and having made fast also to it rearward of the rear bearing the pinion S3. To the lever J2 there is connected the link S1 above the point of connection of the link L, and to the other end of said link a sin` rt rack S40 is secured, which is adapted to mesh with the pinion S3. The link S4 may be provided with a fixed guide-bearing S41, by which the rack S40 is kept in mesh with the pinion S2.

vIt will be seen that as the lever J2 is oscillated by the cam J and the spring J2 the rack S40 will actuate the pinion S3 and rock the shaft S back and forth as the lever J2 moves back and forth. The normal position of the lip S2-that-is, the posit-ion occupied when the prominence J of the cam J is not in engagement With the abutment J20 of the lever J2- is projecting upward, its upper edge being just below the plane of the upper surface of the upper ply of the conveyer-belt. To the frame A there is secured a thin strip of metal S5, which at its inner edge is in contact with the upper surface of the belt and overhangs the idle-roller q, its delivery edge overhanging the upper edge of the lip S2 when the latter is normally upstanding. Its right-hand edge contacting the belt just where the belt begins to curve as it passes around the roller, the seals carried by the belt will be lodged on the lip and pushed on over, those behind pushing those in front as the belt moves, and as each seal becomes overbalanced as it passes off the delivery edge of the strip S5 it falls down in front--that is, at the left-of the upwardly-projecting lip S2, lodging edgewise on the tray T, leaning to the right against said lip. Now when the lever J2 is oscillated, and through the connections described rocks the shaft S', the lip S2 is tipped to the left and tips over in that direction the seal whichhas been leaning up against it. A block or any temporary obstruction or rest being provided on the tray T, against which the first seal thus tipped over may be caused to lean to the left, all subsequently-delivered seals will` be caused to lean up against the preceding one, and as the tray is carried to the left by the chain V a distance corresponding to the thickness of the seals they will be piled thereon, standing on edgein convenient shape to be subsequently handled. The tray or tablet is carried by endless chains driven around sprocket-wheels V V', actuated by pawl-andratchet mechanism connected with the lever F. This mechanism is the same as that shown in said application of Christian C. Hill, iiled October 28, 1889, Serial No. 328,446.

The numbering-machine C21 may be of any familiar construction and is not herein illustrated in detail. It is sufficient to say that the numbering mechanism consists of the numberwheels, of which one is shown, (indicated by the letter U,) and that this mechanism is actuated at each reciprocation of the head to change the number, the actuation being effected by the collision of the plungerhead U2 of the,numbering-machine with the abutment or stop U as the head rises, said abutment being made fast to the bracket A behind the head and extending out past it, so as to overhang the plunger U2. The numbering-machine is located to the right of the sealimprinting stamp a distance such that its numeral type faces stand one or more seallengths from the space left forthe number in the seal-imprint stamp, so that as the tape advances it rst receives the number and afterward the seal-imprint, a following seal being numbered while the tirst is receiving the sealimprint.

The inking mechanism is necessarily constructed in View of the fact that the roll must travel horizontally over both the seal-im print stamp and the numbering-stamp, this necessity compelling the provision for a long horizontal stroke, such as the described mechanism affords.

I claiml. In combination with the conveyer-belt, the receiving-tray located below the level of it at the delivery end, mechanism which actuates the tray longitudinally intermittingly a distance corresponding to the thickness of the seals at each impulse, the lip S2, pivoted to the frame and normally upstanding from its pivot at the delivery end of the belt, and mechanism which rocks it from its position of rest outward slightly past the vert-ical position after each impulse of the tray-actuating mechanism, substantially as and for the purpose set forth.

2. In combination with the conveyer-belt, the receiving-tray located below the level of it at the delivery end, the lip S2, pivoted to the frame and normally upstanding from its pivot at the delivery end of the belt and adapted to be rocked on its pivot outward from the belt, substantially as and for the purpose set forth.

3. In combination with the conveyer-belt, the receiving-tray located below the level of its carrying-surface at the delivery end, the xed lip S5, secured to the frame overhanging the delivery end of the conveyerlbelt and hav- IOO ing its inner migo close ihoroto,:md the lip Si?, l iny hand, in the presence of two witnesses, at

pivoted to Lliefrnmeaud normallyupsmnding,r Chicago, Illinois, this 5th day of September, 1o

from its pivolvfind overhung at its upper ond NSE).

bythoouteredg'o011th@lixedlip Synod adapted AUGUSTVS G. BURTOX to be rocked over its pivot outward from tho delivery ond of the conveyor, Substnminlly :is

and for the purpose set forth. [n testimony whereof I have hereunto Set Witnesses:V (I1-ms. BURTON,

JEAN ELLIoTT. 

